ES256364A1 - Indicator strip and method of testing - Google Patents

Indicator strip and method of testing

Info

Publication number
ES256364A1
ES256364A1 ES0256364A ES256364A ES256364A1 ES 256364 A1 ES256364 A1 ES 256364A1 ES 0256364 A ES0256364 A ES 0256364A ES 256364 A ES256364 A ES 256364A ES 256364 A1 ES256364 A1 ES 256364A1
Authority
ES
Spain
Prior art keywords
band
strip
reaction
uniformly impregnated
biochemical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES0256364A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Warner Lambert Co LLC
Original Assignee
Warner Lambert Pharmaceutical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Warner Lambert Pharmaceutical Co filed Critical Warner Lambert Pharmaceutical Co
Publication of ES256364A1 publication Critical patent/ES256364A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/58—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving urea or urease
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/52—Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper and including single- and multilayer analytical elements
    • G01N33/521—Single-layer analytical elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/805—Test papers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Hematology (AREA)
  • Organic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Zoology (AREA)
  • Urology & Nephrology (AREA)
  • Microbiology (AREA)
  • Wood Science & Technology (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Cell Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

An assay indicating device for quantitatively determining the amount of a biochemical in a body fluid, characterized by a strip of absorbent material impregnated with a plurality of reactive systems in bands extending the width of said strip, said bands comprising first reaction band at one end of said strip uniformly impregnated with a reactive system adapted to undergo a reaction with said biochemical to form a gas, a second band adjacent said second band uniformly impregnated with an inert impregnator intended to prevent capillary flow through said third band and a fourth band adjacent said third band uniformly impregnated with an indicator destined to change color in a fat proportional to the amount of said gas formed by said reaction. (Machine-translation by Google Translate, not legally binding)
ES0256364A 1959-03-13 1960-03-09 Indicator strip and method of testing Expired ES256364A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79938859A 1959-03-13 1959-03-13
US4566A US3011874A (en) 1959-03-13 1960-01-25 Indicator strip and method of testing

Publications (1)

Publication Number Publication Date
ES256364A1 true ES256364A1 (en) 1960-10-16

Family

ID=26673178

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0256364A Expired ES256364A1 (en) 1959-03-13 1960-03-09 Indicator strip and method of testing

Country Status (4)

Country Link
US (1) US3011874A (en)
BE (1) BE588525A (en)
CH (1) CH399779A (en)
ES (1) ES256364A1 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139328A (en) * 1960-07-21 1964-06-30 Sun Oil Co Indicator paper
NL301192A (en) * 1963-01-18
US3249513A (en) * 1963-09-19 1966-05-03 Warner Lambert Pharmaceutical Purification of urease
DE1910272U (en) * 1964-11-12 1965-02-18 Boehringer & Soehne Gmbh TEST STRIP.
US3341427A (en) * 1965-01-22 1967-09-12 Warner Lambert Pharmaceutical Diagnostic preparation and process for the detection of acetylmethylcarbinol
US3420205A (en) * 1966-03-23 1969-01-07 Miles Lab Indicating device
US3359180A (en) * 1967-04-04 1967-12-19 Warner Lambert Pharmaceutical Diagnostic preparation for the detection of acetylmethylcarbinol
US3899295A (en) * 1973-11-23 1975-08-12 Bio Medical Sciences Inc Integrity indicator
CA1048390A (en) * 1975-02-14 1979-02-13 James B. Dugle Method, composition, and device for determining the specific gravity of a liquid
USRE30267E (en) * 1975-06-20 1980-05-06 Eastman Kodak Company Multilayer analytical element
CA1054034A (en) * 1975-06-20 1979-05-08 Barbara J. Bruschi Multilayer analytical element
US4094647A (en) * 1976-07-02 1978-06-13 Thyroid Diagnostics, Inc. Test device
US4129417A (en) * 1977-10-28 1978-12-12 Miles Laboratories, Inc. Multisystem test means
US4361537A (en) * 1979-01-12 1982-11-30 Thyroid Diagnostics, Inc. Test device and method for its use
US4235601A (en) * 1979-01-12 1980-11-25 Thyroid Diagnostics, Inc. Test device and method for its use
JPS568549A (en) * 1979-07-02 1981-01-28 Fuji Photo Film Co Ltd Multilayer chemical analyzing material
US4478944A (en) * 1982-11-24 1984-10-23 Eastman Kodak Company Analytical element containing a barrier zone and process employing same
US4502605A (en) * 1984-06-29 1985-03-05 Denerik Creativity, Inc. Container closure integrity system
US5501949A (en) * 1985-12-10 1996-03-26 Murex Diagnostics Corporation Particle bound binding component immunoassay
US4786589A (en) * 1986-08-18 1988-11-22 Huntington Medical Research Institute Immunoassay utilizing formazan-prelabeled reactants
US5137804A (en) * 1988-05-10 1992-08-11 E. I. Du Pont De Nemours And Company Assay device and immunoassay
US5374524A (en) * 1988-05-10 1994-12-20 E. I. Du Pont De Nemours And Company Solution sandwich hybridization, capture and detection of amplified nucleic acids
US5334513A (en) * 1988-05-17 1994-08-02 Syntex (U.S.A.) Inc. Method for immunochromatographic analysis
US5620845A (en) * 1988-06-06 1997-04-15 Ampcor, Inc. Immunoassay diagnostic kit
US5354692A (en) * 1992-09-08 1994-10-11 Pacific Biotech, Inc. Analyte detection device including a hydrophobic barrier for improved fluid flow
US5851777A (en) * 1996-02-05 1998-12-22 Dade Behring Inc. Homogeneous sol-sol assay
JP4681198B2 (en) * 2000-03-17 2011-05-11 株式会社三和化学研究所 Test paper
US20060040258A1 (en) * 2004-08-23 2006-02-23 Huiyan Guo Water-soluble conjugates and methods of preparation
US20060205090A1 (en) * 2005-03-14 2006-09-14 Newton Michael W Water-soluble conjugates for electrochemical detection
US8409864B2 (en) * 2006-01-06 2013-04-02 Renal Solutions, Inc. Ammonia sensor and system for use
CN106645675B (en) * 2017-01-03 2019-03-15 长沙中生众捷生物技术有限公司 The detection reagent of urea nitrogen and the Test paper of urea nitrogen
RO134088A0 (en) 2019-12-19 2020-05-29 Niculescu Alexandru Dental cone indicator made of paper and dental strip indicator, and method of use

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105226A (en) * 1931-06-08 1938-01-11 Francis G Pratt Group test strip
US2167304A (en) * 1936-05-12 1939-07-25 Kloz Gerhard Supervision of the uniformity of galvanic baths
US2129754A (en) * 1937-08-12 1938-09-13 Carl Schleicher & Schull Co In Test paper
US2249867A (en) * 1938-01-15 1941-07-22 Marjorie G Snelling Dampness detecting and indicating device
US2848308A (en) * 1955-12-05 1958-08-19 Miles Lab Composition of matter

Also Published As

Publication number Publication date
US3011874A (en) 1961-12-05
BE588525A (en) 1960-08-12
CH399779A (en) 1965-09-30

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